*{
    margin: 0;
    padding: 0;
}
html,body{
    width: 100%;
    height: 100%;
    background:rgba(17,126,108,0.8);

}
.wrapper{
    width:100%;
    height: 100%;
    padding:5%;
    box-sizing: border-box;
    border:1 solid #000;
}
.left,
.middle,
.right{
    width: 33%;
    height: 100%;
    float: left;
    border:1px solid #000;
    border-radius:10px;
    background: #fff;
    position: relative;
    transition:all 0.7s ease-in-out; 

}
.left .page,
.left .back{
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    border-radius:10px;
    background: #fff;
    
    
}
.left{
    transform: rotateY(180deg);
    transform-origin: 100% 50%;
    z-index: 20;
    overflow: hidden;
    
}
.right{
    transform: rotateY(-180deg);
    transform-origin: 0% 50%;
}
.left .page{
    transform: rotateY(180deg);
    z-index: 10;
    
}
.left .back{
    z-index: 5;
    position: relative;
    
}
.left.openk{
    transform-origin: 100% 50%;
    transform: rotateY(0deg);
    transition:all 0.7s ease-in-out; 

}
.right.openk{
    transform-origin: 0% 50%;
    transform: rotateY(0deg);
    transition:all 0.7s ease-in-out;

}
.back.openk{
    z-index: 11;
    /* transition:all 0.7s ease-in-out ; */
}
.open{
    position: absolute;
    bottom: 20px;
    left:20px;
    height: 30px;
    width: 70px;
    background: #fff;
}
.open:hover{
    color: #ffffff;
    background: #000;
    height: 30px;
    width: 70px;
    opacity: 0.7;

}
.view{
    position: relative;
    max-height: 80px;
    overflow: hidden;
    margin: 5px  20px  5px  20px;

    
}
.view::before{
    position: absolute;
    content: "";
    top: 0;
    left: 0;
    height: 100%;
    width: 100%;
    background: linear-gradient(transparent,#fff);
   
}
h1{
    margin-left: 20px;
    margin-top:5px;
    color: #c0c0c0;
}
.viv{
    
   
    overflow: hidden;
    margin: 5px  20px  5px  20px;

    
}
.close{
    position: absolute;
    top: 0;
    right: 0;
    width: 50px;
    height: 50px;
    background: #000;
    color: #fff;
    border:1px solid #ccc;
    border-radius:10px;
}
